chicago



W. E. WILLIAMS SINGLE *DISK WHEEL FOR AUTOMOBILES Aug. 31,1926.

Filed June' 4. 1920 IIN/en for mtness Patented ug. Fil, 1925.,

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Y WILLIAM nnAsTUs wILLIAMs, or onf-icas roUNnnIEs, or CHICAGO, Inliner rA CR'FORATION 0F NEW JERSEY. l

SINGLE-DISK 'WHEEL FOR 'AUOMOBILES Application filed June 4,

The ob] ect of my invention is to produce l a cheap, strong, light disk wheel that may be applied to the ordinary hubs used with wooden wheels in automobiles.

Reference will be had to the accompanying drawings in which Figure 1 is a front elevation of the wheel.

Figure 2 is a section on line 2 2 of Figure 1. Y

Figure 3 is a detail of a portion of the In the drawing 1 indicates the ordinaryY rim of the clincher type used in connection with automobiles and is here shown of the type called. demountable. 2 indicates the hub of the ordinary type and 3 the brake drum. i indicates an integralflange of the hub, 5 a front ring and 6 the web disk of the wheel.

7 indicates a wooden filler block made in twopieces or more, in a manner to set the grain of one block transversely to the other in a manner of built up glued together wood structures. The ring 5, 'disk 6 and filler block 7 are fastened to the flange 4 through the medium of the bolts 8.

The. filler block 7 together with the disk in the embrace of the hub flanges occupy the same space that might be occupied by the spokes of an artillery type wooden wheel The disk 6 is dished as indicated and in the hub zone is turned over as indicated bv 9, forming a 'deep shoulder or bearing` of an annular type upon the block 7 in lsuch manner that the block 7 extends out beyond the flange 4: and ringV 5 and reinforces the vdisk in resisting skidding strains and also direct loads. A circular section of the disk at the outer margin of the filler has a much greater area than the edge 10 at the hub.

If the whole load was sustained by the 'disk at edge 10 of the hub barrel owing to the smaller diameter of the hub barrel there would be a greater fibre stress of the metal of the disk than is the case as I have it arranged where part of the stress is taken up by the filler block 7 in the curved annular region 9 of the disk.

The outer margin of the disk is turned over into a rim portion 11 having` an annular outwardly extending rib 12 resting upon one edge of the rim 1. The rim 1 is supported at the front region by a series of wedge clip fastenings 13 secured in place by screws 14 1920. serial No. 386,447.

screwed into nuts 15 which are fastened into the disk by being swaged out at their ends as indicated by 16.

By loosening the screws 14e the rim 1 may be Vdemounted from the disk in a manner well understood in demounting fixtures.

The disk 6 is tapered in its outer zone, the thinnest point being` at 17 and this increases to the normal thickness of the Idisk at the curved portion 18. This lightens the metal. considerably in the zone where it is not needed and permits a slight degree of elasticity in the disk and yet maintains a rigid form to the rim and the necessary stiffness around the hub region.

it the outer zone of the disk I put in the bead or curve 19 which gives lateral stiff-- ness around this zone of the Idisk to aid in taking the thrust of the screws 14 in screwing the demountable rim to the disk and it also permits a little greater depth of dish to the disk which is a desideratum.

rThe type of demountable fastenings herein shown by the rim 1, may be changed to the other types of the same. general character without necessarily changing the configuration of the disk. Instead of a wooden block 7 I may use a suitable metal block.

1. In a wheel, the combination with a hub having a .rigid annular flange, of a primarily loose ring co-acting with the flange7 a filler block between the ring and flange and having its front and outer portions substantially rounded, a rim-carrying disk fitting laterally against said rounded portion, and bolts binding said ring, filler and disk rigidly to the flange.

2. In a wheel of the class described. a rimcarrying disk' and a filler block together occupying in the hub zone the space usually occupied by the spokes of an artillery wheel, the block peripherally rounded on its front side to a substantial extent and the disk eX- tending radially and rearwardly in close contact with said rounded surface and then curving forwardly and radially across the central load plane and having the outer marginal zone. bent rearwardly to support a rim.

In a wheel of.' the class described, a dished disk which is thicker in the hub zone and tapered outward toward the margin thereof bein@` thinner near the outer margin ILLINGIS, ASSIGHR TO AMERICAN STEEL l and again thicker in its marginal zone and bent laterally to form a thick annular rimreceiving flange.

4. In a Wheel of the class described, a hub and dished disk secured thereto, said disk being thicker in the hub zone and tapering outward toward the rim zone and again made thicker in the rim zone, with its margin turned over into arim and stif'ened by an annular bead curved portion in the 10 and State of Illinois, this 25th clay of May, 15

WILLIAM ERASTUS WILLIAMS. 

